>>> from dies import dies_setmana

--ini-enunciat
>>> ndies= ['dilluns','dimarts','dimecres','dijous','divendres',
...         'dissabte','diumenge']
>>> dies = [27, 28, 29, 30, 1, 2, 3]
>>> it = dies_setmana(ndies, 3, dies)
>>> next(it)
('dijous', 27)
>>> next(it)
('divendres', 28)
>>> next(it)
('dissabte', 29)
>>> for dia in it:
...     print(dia, end='-')
('diumenge', 30)-('dilluns', 1)-('dimarts', 2)-('dimecres', 3)-

 --fi-enunciat
 

>>> import itertools

>>> dies = itertools.chain(range(1, 32), range(1, 31))
>>> it = dies_setmana(ndies, 2, dies)
>>> next(it)
('dimecres', 1)
>>> next(it)
('dijous', 2)
>>> next(it)
('divendres', 3)
>>> next(it)
('dissabte', 4)
>>> next(it)
('diumenge', 5)
>>> next(it)
('dilluns', 6)
>>> it2 = itertools.islice(it, 23, 27)
>>> for d in it2:
...     print(d, end='-')
('dijous', 30)-('divendres', 31)-('dissabte', 1)-('diumenge', 2)-


>>> for d in itertools.islice(it, 27, None):
...     print(d, end='-')
('diumenge', 30)-




Fem un calendari a partir de l'iterador.

>>> from functools import reduce
>>> import operator

>>> n_set = {'dilluns': 0,'dimarts': 1,'dimecres': 2,'dijous': 3,
...          'divendres': 4,'dissabte':5 ,'diumenge': 6}
>>> def calendari(it):
...     def str_dia(dia):
...         dset, dmes = dia
...         return '{:2d} '.format(dmes) + ('\n' if dset == 'diumenge' else '')
...    	s = 'dl dt dc dj dv ds dd \n'
...    	dia = next(it)
...	s +=  '   ' * n_set[dia[0]] + str_dia(dia)
...     s += reduce(operator.add, map(str_dia, it))
...     return s	
>>>

>>> dies = itertools.chain(range(7, 32), range(1, 31))
>>> it = dies_setmana(ndies, 1, dies)

>>> print(calendari(it))
dl dt dc dj dv ds dd 
    7  8  9 10 11 12 
13 14 15 16 17 18 19 
20 21 22 23 24 25 26 
27 28 29 30 31  1  2 
 3  4  5  6  7  8  9 
10 11 12 13 14 15 16 
17 18 19 20 21 22 23 
24 25 26 27 28 29 30 
<BLANKLINE>